Valve



R. W. HAYS Dec. 21, 1948.

VALVE Filed Nov. 29, 1946 Patented Dec. 21, 1948 UNITED STATES PATENTOFFICE VALVE Roy Wilson Hays, Rockford, Ill.

Application November 29, 1946, Serial No. 712,765

This invention relates to automatic closing valves for admitting air orother gas into a bag or chamber.

One object is to provide a novel valve of the above character which maybe made cheaply from sheet metal stampings.

Another object is to provide a valve which is adapted to receive andinterlock detachablyr with a lling nozzle so as to be held open therebyand permit lling of the associated bag with a gas at a relatively lowpressure.

Still another object is to form the valve parts with cooperatingclamping elements for securing the valve to a bag.

Other objects and advantages of the invention will become apparent fromthe following detailed description taken in connection with theaccompanying drawings, in which Figure 1 is a longitudinal crosssectional view of the improved valve and a portion of a supporting bag,the section being taken on the line I--I of Fig. 3.

Fig. 2 is a longitudinal sectional view taken along the line 2-2 of Fig.3.

Fig. 3 is a plan View taken along the line 3-3 of Fig. 1.

Fig. 4 is an enlarged fragmentary sectional view taken along the line4-4 of Fig. 3.

Fig. 5 is a. View similar to Fig. 2 showing a modication.

The improved valve is shown in the drawings adapted for use in closingone end of a clothes bag I0, or the like, after the latter has beeniilled with a gaseous insecticide delivery, preferably at low pressure,through a pipe or nozzle II. The valve includes a generally cylindricalshell for tube I2 having an outturned, preferably right angular ange I3with one end adapted to bear against the external surface of the bagaround an opening I4 therein.

The other end of the shell is shaped to receive and cooperate with thenozzle II to form a connection for holding the two together with thevalve held open. In the form shown in Figs. 1 to 3, the nozzle ts snuglyin the shell and is held securely therein by interengageable bayonetelements engaged by inserting the nozzle to move outwardly projectingpins I'B thereon into the bottoms of recesses I5 in the shell and thenturning the nozzle within the shell to carry the pins into the laterallyextending parts I1 of the recesses.

A relatively shallow cup I8 having a ilat bottom I9 and a generallycylindrical side Wall is pressed upside down into the other end of the 2Claims. (Cl. 284-14) shell I2. In this operation, an outturned iiange 20around the lip of the cup is moved toward the shell flange I3, the bagmargin thus being clamped rmly between two flanges to form a gastightseal around the bag opening. Preferably the flanges are corrugated asshown to provide more eiective clamping.

The valve proper is formed by a i'lat disk 2|' cooperating with holes 22punched out of the cup bottom I9 and arranged in an annular series.Herein the edges of the metal dening the holes are depressed slightly inthe punching operation to define seats 23 of narrow radial width so thatthe holes may be closed tightly when a disk 2|, which is composed ofrubber or another relatively pliable material, is pressed lightlyagainst the seats. The disk 2l which is slightly smaller in diameterthan the cup I8 is attached as by adhesive to a metal supporting disk 24riveted or otherwise secured at its center to one end of a stem 25 whichprojects slidably through a hole in the cup bottom. A coiled compressionspring 26 encircling the stem above the cup bears against a crossbar 21riveted on the other end of the stem. Thus when the crossbar is releasedas shown in Fig. 1, the valve disk 2| is pressed against the seats 23with suflicient force to form effective seals around the holes andthereby close the latter against the escape of gas from the bag.

The crossbar 2'I is spaced from the open end o the shell so as to beengaged by the end of the nozzle I I when the latter is inserted in theshell I2. Then in the further movement of the nozzle to carry the pin I6into the bayonet recesses I5, the valve disk 2I is moved away from theseats 23 to open all of the valve holes as shown in Fig. 2, the endportion of the nozzle then fitting tightly in the cylindrical part ofthe shell. As the nozzle is turned in the shell to complete the bayonetconnection, it becomes locked in the shell against withdrawal, andserves to hold the valve open without further attention by the operator.The valve is closed automatically by the spring 26 as the nozzle isdisconnected and withdrawn from the shell.

In the modied form shown in Fig. 5, the nozzle I I, when inserted in theshell I2, engages the latter with a relatively tight friction fit whichserves to hold the valve open while the nozzle remains inserted. To thisend, the open end of the shell is tapered a few degrees, the internalWall 29 diverging inwardly from an end flange 28. The nozzle is formedwith a complemental external taper of such size that the end of thenozzle engages and depresses the crossbar 24 I claim as my invention:

1. A Valve of the character described;l compris, f

ing a cylindrical shell having an outtilrned flange operation of fillingthe bag l@ from the nozzle".

at one end, a cup having a valve fiole in' its l closed end and anoutturned flange aroundy its?.I

open end cooperating with said rst flange to forni a :c lamp, lthedeningedge offsaid holebeing `d1rssedfout o` the" plane' of said @up and, the

clOsd'ehd-portion of Saidcup' being pies'sedinto vsaid shell-4to close's 'aid clanip, a disk withinsaid culoV kaxially spaced inwardly andcooperating,- with said' pressedA outedge tofo'rn'i' a valve, a-sterncarryi'ng said disk at one' endv and projecting slidablj.T through theclosedend of' said cup, means onthe `other end ofv said shell formingone element of a iii) 4 disk away from said hole While said connectionis maintained.

2. A Valve oi the character described, comprising a shell having anoutturned flange at one end, the other end being adaptedto receive afilling nozzle, a cup having a valve hole in its closed end and anoutturned iiange around its open end cooperating with said first flangeto form a clamp, theclosed; end1 portionfof said cup being pressed intosaid" shell to close? said: clamp, a disk within said cup axially spacedinwardly from the cup iange and cooperating with said hole to form avalve, a stern carrying said diskk at one end and projecting slidablythrough the closed end of said c-"up, an'abutment on said stern spacedfrom Asaid clip, and a spring encircling said stem and acting betweensaid' cup and said abutment to urge disk toward said valve hole.

ROY WiLsoN HAYs.

'499;956] y Berry i June 203 1393 516,902 i-aeb'eil Apr'. 3f, 19009189458 Mentzer Api-g13g19o`9 1,093,961

